Danfoss MBS 1700, MBS 1750 Data sheet

Data Sheet

Pressure transmitter Type MBS 1700 and MBS 1750

For general purpose

The compact pressure transmitters MBS 1700 and MBS 1750 are designed for use as a general purpose transmitter, and oers a reliable pressure measurement, even under harsh environmental conditions.

The version MBS 1750 with integrated pulsesnubber is designed for use in applications with severe medium inuences like cavitation, liquid hammer or pressure peaks and oers a reliable pressure measurement, even under harsh environmental conditions.

Excellent vibration stability, robust construction, and a high degree of EMC / EMI protection equip the pressure transmitter to meet the most stringent industrial requirements.

Features

• Enslosure and wetted parts of acid-resistant stainless steel (AISI 316L)

• Pressure ranges in relative (gauge) from 0 – 25 bar

• Output signal: 4 – 20 mA

• Pressure connections:

◦ G 1/4A & G 1/2A EN837 (MBS 1700) ◦ G 1/4 DIN 3852-E, Gasket DIN 3869-15 (MBS

1750)

• Fully digitally compensated

AI309034611216en-000201

Pulse-snubber

Pressure transmitter, Type MBS 1700 and MBS 1750

Application

Application and media conditions (MBS 1750)

Figure 1: MBS 1750

Application

Cavitation, liquid hammer and pressure peaks may occur in liquid lled systems with changes in ow velocity, e.g. fast closing of a valve or pump starts and stops. The problem may occur on the inlet and outlet side, even at rather low operating pressures.

Media condition

Clogging of the nozzle may occur in liquids containing particles. Mounting the transmitter in an upright position minimizes the risk of clogging, because the ow in the nozzle is limited to the start-up period until the dead volume behind the nozzle orice is lled. The media viscosity has only little eect on the response time. Even at a viscosities up to 100 cSt, the response time will not exceed 4 ms.

Features

Description

Accuracy (incl. non-linearity, hysteresis and repeatability) ≤ ± 0.5% FS (typ.)

≤ ± 1.0% FS (max.)

Non-linearity BFSL (conformity)

≤ ± 0.2% FS

Hysteresis and repeatability

≤ ± 0.1% FS

Thermal zero point shift ≤ ± 0.1% FS/10K (typ.)

≤ ± 0.2% FS/10K (max.)

Thermal sensitivity (span) shift ≤ ± 0.1% FS/10K (typ.)

≤ ± 0.2% FS/10K (max.)

Response time Air and gases (MBS 1700)

< 4 ms

Air and gases (MBS 1750)

< 35 ms

Overload pressure (static)

6 × FS (max. 1500 bar)

Burst pressure

6 × FS (max. 2000 bar)

Power-up time

< 50 ms

Durability, P: 10 – 90% FS

> 10 × 106 cycles

Features

Description

Nom. output signal (short-circuit protected)

4 – 20 mA

Supply voltage [UB], polarity protected

9 – 32 V d.c.

Supply – current consumption

–

Supply voltage dependency

≤ ± 0.1% FS/10 V

Current limitation

22.4 mA (typ.)

Output impedance

–

Load [RL] (load connected to 0 V)

RL ≤ (UB - 9 V)/0.02 A [Ω]

Features

Description

Sensor temperature range

Normal

-40 – 85 °C

media temperature range

-40 – 85 °C

Ambient temperature range

-40 – 85 °C

Compensated temperature range

0 – 80 °C

Transport / storage temperature range

-50 – 85 °C

EMC – Emission

EN 61000-6-3

EMC – Immunity

EN 61000-6-2

Insulation resistance

> 100 MΩ at 100 V

Mains frequency test

Based on SEN 361503

Vibration stability Sinusoidal

15.9 mm-pp, 5 Hz-25 Hz

IEC 60068-2-6 20 g, 25 Hz – 2 kHz

Random

7.5 grms , 5 Hz – 1 kHz

IEC 60068-2-64

Shock resistance Shock

500 g / 1 ms

IEC 60068-2-27

Free fall

1 m

IEC 60068-2-32

Enclosure

IP65

Materials

Wetted parts

EN 10088-1; 1.4404 (AISI 316 L)

Enclosure

EN 10088-1; 1.4404 (AISI 316 L)

Electrical connections

Glass lled polyamid PA 6.6

Net weight

0.25 kg

Pressure transmitter, Type MBS 1700 and MBS 1750

Product specication

Technical data

Table 1: Performance (EN 60770)

Table 2: Electrical specications

Table 3: Environmental conditions

Table 4: Mechanical characteristics

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